speed limiter

[72chevy4x4]

I've searched and read....seems the OE limit is set at 82mph (correct???). My van feels like its defueling at 72-75mph. It was a Penske rental truck-maybe they had it set to defuel at a lower speed? Would the dealer be able to reset to the OE value?

One thread mentioned use of an MB-WIS system to change settings-is that true? I use to have a copy for a W210, but that was an old OBDII system w/ few parameters.

[jdcaples]

I didn't know WIS (Workshop Information System) was a scantool.

I thought WIS was a big computer-resource somewhere that the DAS and the SDS scan tools interfaced with for MB Vehicle service info.


I guess I need to more homework.

Now, if you meant you have an old copy of DAS (Star Diagnosis), I think you'll have to have it updated to a revision that includes being able to speak NAFTA Sprinter.

The Chrysler tools can ratchet down the top speed, but they can't exceed the factory setting. If I recall correctly.
InmotionUSA might be able to pull that off for you, though.
-Jon

[72chevy4x4]

my memory fails me-you are correct re: WIS-that was another program I used for connecting to the OBDII port.

According to the Special Equipment Book, code XFS is a Speed Governor, and it says:

Details and Technology "The top speed is limited to 119.097 km/h (74 MPH) via the engine management."
Benefits: "For vehicles for which speed limitation is desired."
Remarks: "Fleet options."

So, you won't be able to get that 119.100 km/h that you wanted ;), and since it was a rental truck Penske may have ordered it with the governor. Nothing on whether it can be reset, however.

[scubanw3]

Jon is correct; WIS is literally a Workshop Information System and not a scan tool. The early and late model Sprinters have two or three speed limits (can’t remember the number at the moment and I’m out of the shop until next week) that can be chosen via the factory scan tools plus the DAS and SDA scan tools. Hope this helps.

Thank you, John
Sprinter Store
http://sprinterstore.com/
A division of Upscale Automotive, Inc.
19460 SW 89th Ave.
Tualatin, OR 97062
503-692-0846

[twistyroad]

Originally Posted by jdcaples

The Chrysler tools can ratchet down the top speed, but they can't exceed the factory setting. If I recall correctly.

And if you ratchet it down, it's not easy to restore it... I just learned that the hard way...
When you hook the StarMOBILE up to the Sprinter and bring up the page on the Desktop Client, it looks like this:

Slide1sm.jpg

I clicked on "Next", and tried to enter a couple of values that were higher than my factory setting (82)... wouldn't accept them. Then just to experiment, I entered 25mph. It happily accepted that, and the screen looked like this:

Slide2sm.jpg

OK, experiment complete... it looks like it will take pretty much any number you enter, as long as it's below the factory-programmed default/maximum.
But then it got interesting, because when I tried to go back to 82, it wouldn't accept any number higher than the 25 it had accepted. A pop-up window said it would take any value down to 15, but nothing above the new high limit I had entered.
The key to resolving this lay in the fine print... look again at the first screen shot above... "to raise the speed back to the factory default, the manual variant coding routine must be run." Duh. However, I had no idea what code string to enter on the manual variant coding string page... I began to wonder if I had "bricked my ride"...
But after some more exploring, I saw the "restore ECU config" at the bottom of the screen, and realized I could go to TechAuthority, and for a $20-for-24-hour "subscription," reload the default settings into my ECM. Did that, and I'm back to the 82mph limit.
Lesson learned? Read the fine print!
Rock

PS - Jon, the last sentence in that first screenshot above would seem to reinforce your comment about "can't exceed the factory setting." Seems to imply that if you bought a used Sprinter that was originally ordered/delivered with a fleet setting of, say, 65mph, there'd be pretty much nothing you could do to increase it.

[jdcaples]

Rock, you are the bravest NCV3 owner in the NAFTA region.

-Jon